#禁垃圾蜘蛛
if ($http_user_agent ~* "CheckMarkNetwork|Synapse|Nimbostratus-Bot|Dark|scraper|LMAO|Hakai|Gemini|Wappalyzer|masscan|crawler4j|Mappy|Center|eright|aiohttp|MauiBot|Crawler|researchscan|Dispatch|AlphaBot|Census|ips-agent|NetcraftSurveyAgent|ToutiaoSpider|EasyHttp|Iframely|sysscan|fasthttp|muhstik|DeuSu|mstshash|HTTP_Request|ExtLinksBot|package|SafeDNSBot|CPython|SiteExplorer|SSH|MegaIndex|BUbiNG|CCBot|NetTrack|Digincore|aiHitBot|SurdotlyBot|null|SemrushBot|Test|Copied|ltx71|Nmap|DotBot|AdsBot|InetURL|Pcore-HTTP|PocketParser|Wotbox|newspaper|DnyzBot|redback|PiplBot|SMTBot|WinHTTP|Auto Spider 1.0|GrabNet|TurnitinBot|Go-Ahead-Got-It|Download Demon|Go!Zilla|GetWeb!|GetRight|libwww-perl|Cliqzbot|MailChimp|SMTBot|Dataprovider|XoviBot|linkdexbot|SeznamBot|Qwantify|spbot|evc-batch|zgrab|Go-http-client|FeedDemon|JikeSpider|Indy Library|Alexa Toolbar|AskTbFXTV|AhrefsBot|CrawlDaddy|CoolpadWebkit|Java|UniversalFeedParser|ApacheBench|Microsoft URL Control|Swiftbot|ZmEu|jaunty|Python-urllib|lightDeckReports Bot|YYSpider|DigExt|YisouSpider|HttpClient|MJ12bot|EasouSpider|LinkpadBot|Ezooms") {
	return 400;
	break;
}

#禁部分爬取工具
if ($http_user_agent ~* "crawl|curb|git|Wtrace|Scrapy" ) {
	return 400;
	break;
}

#UA 不全，十有八九不是正常访问，禁
if ($http_user_agent = "Mozilla") {
	return 400;
	break;
}

#UA 不全，十有八九不是正常访问，禁
if ($http_user_agent = "Mozilla/5\.0") {
	return 400;
	break;
}

#UA 不全，十有八九不是正常访问，禁
if ($http_user_agent = "Mozilla/4\.0") {
	return 400;
	break;
}

#禁IE6
if ($http_user_agent = "MSIE 6\.0") {
	return 400;
	break;
}

#禁止特殊请求方式
if ($request_method ~* "DELETE|OPTIONS" ) {
	return 400;
	break;
}

#禁特殊url，wp慎
location ~* (wp-login\.php|LICENSE|README\.md)$ {
	return 400;
	break;
}

#禁特殊url
location ~* ^/(cgi-bin|includes|plus|user|web|vendor|maccms|bitcoin|wallet|backup)/.*.(php|php5|html)$ {
	return 400;
	break;
}

#禁特殊后缀
location ~* \.(asp|aspx|htaccess|ini|sql|env|git|project|cgi)$ {
	return 400;
	break;
}

#禁压缩包
location ~* \.(tgz|bak|zip|rar|tar|gz|bz2|xz|tar.gz)$ {
	return 400;
	break;
}

#禁空 UA
if ($http_user_agent ~* ^$) {
	return 400;
	break;
}

#非 SSR 屏蔽
if ($http_user_agent ~* "python-requests" ) {
	return 400;
	break;
}

#禁特殊请求工具
if ($http_user_agent ~* "Wget|Curl" ) {
	return 400;
	break;
}

#禁特定请求方式
#if ($request_method ~* "POST|PUT" ) {
#	return 400;
#	break;
#}